Home / 87,977.88-121,380.93-49,733.73

Finding the Fourth Proportional to 87,977.88, 121,380.93 and 49,733.73

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Solution

The fourth proportional to 87,977.88, 121,380.93 and 49,733.73 is: 68,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,977.88 : 121,380.93 = 49,733.73 : x
  2. Step 2: Convert to fraction form
    87,977.88/121,380.93 = 49,733.73/x
  3. Step 3: Cross multiply
    87,977.88x = 121,380.93 × 49,733.73
  4. Step 4: Simplify right side
    87,977.88x = 6,036,726,399.77
  5. Step 5: Solve for x
    x = 6,036,726,399.77/87,977.88
  6. Step 6: Final answer
    x = 68,616.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.